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Tungurahua

Stratovulcano · Ecuador · 5023 m

Snow-capped Tungurahua, seen from near the town of Baños on its northern flank, rises 3200 m above steep-walled canyons. Historical eruptions, separated by long reposes, have produced powerful explosions, sometimes accompanied by pyroclastic flows and lava flows. All historical eruptions have originated from the summit crater, and have typically lasted for several years. The largest historical eruptions took place in 1886, 1916, and 1918.
Snow-capped Tungurahua, seen from near the town of Baños on its northern flank, rises 3200 m above steep-walled canyons. Historical eruptions, separated by long reposes, have produced powerful explosions, sometimes accompanied by pyroclastic flows and lava flows. All historical eruptions have originated from the summit crater, and have typically lasted for several years. The largest historical eruptions took place in 1886, 1916, and 1918. · Foto: Photo by Minard Hall, 1976 (Escuela Politécnica Nacional, Quito). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Ecuador
Regione
South America Volcanic Regions / Northern Andean Volcanic Arc
Altitudine
5023 m
Coordinate
-1.467, -78.442
Ultima eruzione
2016
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

Tungurahua, a steep-sided andesitic-dacitic stratovolcano that towers more than 3 km above its northern base, is one of Ecuador's most active volcanoes. Three major edifices have been sequentially constructed since the mid-Pleistocene over a basement of metamorphic rocks. Tungurahua II was built within the past 14,000 years following the collapse of the initial edifice. Tungurahua II collapsed about 3,000 years ago and produced a large debris-avalanche deposit to the west. The modern glacier-capped stratovolcano (Tungurahua III) was constructed within the landslide scarp. Historical eruptions have all originated from the summit crater, accompanied by strong explosions and sometimes by pyroclastic flows and lava flows that reached populated areas at the volcano's base. Prior to a long-term eruption beginning in 1999 that caused the temporary evacuation of the city of Baños at the foot of the volcano, the last major eruption had occurred from 1916 to 1918, although minor activity continued until 1925.

Sintesi da Wikipedia

Il Tungurahua è uno stratovulcano andino dell'Ecuador, localizzato nell'omonima provincia. Si tratta di uno dei più attivi tra i numerosi vulcani presenti nel territorio ecuadoriano. Il suo nome significa "gola ardente" nella lingua quechua.

Wikipedia · CC BY-SA · Leggi l'articolo completo →

Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
7750 BCE~7425 BCE · 1 eruzioni · VEI max. 41242 BCE~917 BCE · 1 eruzioni · VEI max. 5591 BCE~266 BCE · 2 eruzioni · VEI max. 3266 BCE~60 · 2 eruzioni · VEI max. 360~385 · 3 eruzioni · VEI max. 3385~710 · 2 eruzioni · VEI max. 3710~1036 · 3 eruzioni · VEI max. 41036~1361 · 2 eruzioni · VEI max. 31361~1687 · 3 eruzioni · VEI max. 31687~2012 · 18 eruzioni · VEI max. 47750 BCE5472 BCE2869 BCE591 BCE1687

Cronologia dettagliata

  1. 2012VEI 3Osservata
    2012-12-14 – 2016-03-16
    Summit crater
  2. 2011VEI 2Osservata
    2011-04-20 – 2011-05-26
    Summit crater
  3. 2011VEI ?Osservata
    2011-11-27 – 2012-09-04
    Summit crater
  4. 2010VEI 3Osservata
    2010-01-01 – 2010-08-01
    Summit crater
  5. 2010VEI 3Osservata
    2010-11-22 – 2011-01-02
    Summit crater
  6. 1999VEI 3Osservata
    1999-10-05 – 2009-07-08
  7. 1993VEI 1Stima geologica
    1993-05-06 – 1993-05-06
  8. 1944VEI 2Stima geologica
    1944 – In corso
  9. 1916VEI 4Osservata
    1916-03-03 – 1925-12-01
  10. 1900VEI 2Stima geologica
    1900 – In corso
  11. 1886VEI 4Osservata
    1886-01-11 – 1888
  12. 1885VEI 2Osservata
    1885-01 – 1885-10-16
  13. 1857VEI 2Osservata
    1857-09-10 – In corso
  14. 1781VEI 2Stima geologica
    1781 – In corso
  15. 1777VEI 2Stima geologica
    1777 – In corso
  16. 1776VEI 2Osservata
    1776-01-03 – In corso
  17. 1773VEI 3Osservata
    1773-02-04 – 1773-07
  18. 1757VEI 2Stima geologica
    1757 – In corso
  19. 1644VEI 2Osservata
    1644 – 1646
  20. 1640VEI 3Osservata
    1640 – 1641
  21. 1557VEI 2Osservata
    1557 – In corso
  22. 1350 (±50 anni)VEI 3Stima geologica
    1350 – In corso
  23. 1250 (±50 anni)VEI ?Stima geologica
    1250 – In corso
  24. 1030 (±75 anni)VEI ?Stima geologica
    1030 – In corso
  25. 800VEI ?Stima geologica
    800 – In corso
  26. 730 (±200 anni)VEI 4Stima geologica
    730 – In corso
  27. 600VEI 3Stima geologica
    600 – In corso
  28. 480 (±75 anni)VEI ?Stima geologica
    480 – In corso
  29. 350VEI 3Stima geologica
    350 – In corso
  30. 200VEI ?Stima geologica
    200 – In corso
  31. 100VEI 3Stima geologica
    100 – In corso
  32. 50 a.C.VEI 3Stima geologica
    BCE 50 – In corso
  33. 100 a.C.VEI 3Stima geologica
    BCE 100 – In corso
  34. 270 a.C. (±100 anni)VEI ?Stima geologica
    BCE 270 – In corso
  35. 500 a.C.VEI 3Stima geologica
    BCE 500 – In corso
  36. 1010 a.C. (±100 anni)VEI 5Stima geologica
    BCE 1010 – In corso
  37. 7750 a.C.VEI 4Stima geologica
    BCE 7750 – In corso

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